[PATCH] Add support for Prodrive P3M750 & P3M7448 (P3Mx) boards

This patch adds support for the Prodrive P3M750 (PPC750 & MV64460)
and the P3M7448 (MPC7448 & MV64460) PMC modules. Both modules are
quite similar and share the same board directory "prodrive/p3mx"
and the same config file "p3mx.h".

Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 1025 insertions, 0 deletions

diff --git a/board/prodrive/p3mx/pci.c b/board/prodrive/p3mx/pci.c
new file mode 100644
index 0000000..137739b
--- /dev/null
+++ b/board/prodrive/p3mx/pci.c
@@ -0,0 +1,1025 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+/* PCI.c - PCI functions */
+
+
+#include <common.h>
+#ifdef CONFIG_PCI
+#include <pci.h>
+
+#ifdef CONFIG_PCI_PNP
+void pciauto_config_init(struct pci_controller *hose);
+int  pciauto_region_allocate(struct pci_region* res, unsigned int size, unsigned int *bar);
+#endif
+
+#include "../../Marvell/include/pci.h"
+
+#undef DEBUG
+#undef IDE_SET_NATIVE_MODE
+static unsigned int local_buses[] = { 0, 0 };
+
+static const unsigned char pci_irq_swizzle[2][PCI_MAX_DEVICES] = {
+	{0, 0, 0, 0, 0, 0, 0, 27, 27, [9 ... PCI_MAX_DEVICES - 1] = 0 },
+	{0, 0, 0, 0, 0, 0, 0, 29, 29, [9 ... PCI_MAX_DEVICES - 1] = 0 },
+};
+
+#ifdef CONFIG_USE_CPCIDVI
+typedef struct {
+	unsigned int base;
+	unsigned int init;
+} GT_CPCIDVI_ROM_T;
+
+static GT_CPCIDVI_ROM_T gt_cpcidvi_rom = {0, 0};
+#endif
+
+#ifdef DEBUG
+static const unsigned int pci_bus_list[] = { PCI_0_MODE, PCI_1_MODE };
+static void gt_pci_bus_mode_display (PCI_HOST host)
+{
+	unsigned int mode;
+
+
+	mode = (GTREGREAD (pci_bus_list[host]) & (BIT4 | BIT5)) >> 4;
+	switch (mode) {
+	case 0:
+		printf ("PCI %d bus mode: Conventional PCI\n", host);
+		break;
+	case 1:
+		printf ("PCI %d bus mode: 66 Mhz PCIX\n", host);
+		break;
+	case 2:
+		printf ("PCI %d bus mode: 100 Mhz PCIX\n", host);
+		break;
+	case 3:
+		printf ("PCI %d bus mode: 133 Mhz PCIX\n", host);
+		break;
+	default:
+		printf ("Unknown BUS %d\n", mode);
+	}
+}
+#endif
+
+static const unsigned int pci_p2p_configuration_reg[] = {
+	PCI_0P2P_CONFIGURATION, PCI_1P2P_CONFIGURATION
+};
+
+static const unsigned int pci_configuration_address[] = {
+	PCI_0CONFIGURATION_ADDRESS, PCI_1CONFIGURATION_ADDRESS
+};
+
+static const unsigned int pci_configuration_data[] = {
+	PCI_0CONFIGURATION_DATA_VIRTUAL_REGISTER,
+	PCI_1CONFIGURATION_DATA_VIRTUAL_REGISTER
+};
+
+static const unsigned int pci_error_cause_reg[] = {
+	PCI_0ERROR_CAUSE, PCI_1ERROR_CAUSE
+};
+
+static const unsigned int pci_arbiter_control[] = {
+	PCI_0ARBITER_CONTROL, PCI_1ARBITER_CONTROL
+};
+
+static const unsigned int pci_address_space_en[] = {
+	PCI_0_BASE_ADDR_REG_ENABLE, PCI_1_BASE_ADDR_REG_ENABLE
+};
+
+static const unsigned int pci_snoop_control_base_0_low[] = {
+	PCI_0SNOOP_CONTROL_BASE_0_LOW, PCI_1SNOOP_CONTROL_BASE_0_LOW
+};
+static const unsigned int pci_snoop_control_top_0[] = {
+	PCI_0SNOOP_CONTROL_TOP_0, PCI_1SNOOP_CONTROL_TOP_0
+};
+
+static const unsigned int pci_access_control_base_0_low[] = {
+	PCI_0ACCESS_CONTROL_BASE_0_LOW, PCI_1ACCESS_CONTROL_BASE_0_LOW
+};
+static const unsigned int pci_access_control_top_0[] = {
+	PCI_0ACCESS_CONTROL_TOP_0, PCI_1ACCESS_CONTROL_TOP_0
+};
+
+static const unsigned int pci_scs_bank_size[2][4] = {
+	{PCI_0SCS_0_BANK_SIZE, PCI_0SCS_1_BANK_SIZE,
+	 PCI_0SCS_2_BANK_SIZE, PCI_0SCS_3_BANK_SIZE},
+	{PCI_1SCS_0_BANK_SIZE, PCI_1SCS_1_BANK_SIZE,
+	 PCI_1SCS_2_BANK_SIZE, PCI_1SCS_3_BANK_SIZE}
+};
+
+static const unsigned int pci_p2p_configuration[] = {
+	PCI_0P2P_CONFIGURATION, PCI_1P2P_CONFIGURATION
+};
+
+
+/********************************************************************
+* pciWriteConfigReg - Write to a PCI configuration register
+*		    - Make sure the GT is configured as a master before writing
+*		      to another device on the PCI.
+*		    - The function takes care of Big/Little endian conversion.
+*
+*
+* Inputs:   unsigned int regOffset: The register offset as it apears in the GT spec
+*		   (or any other PCI device spec)
+*	    pciDevNum: The device number needs to be addressed.
+*
+*  Configuration Address 0xCF8:
+*
+*	31 30	 24 23	16 15  11 10	 8 7	  2  0	   <=bit Number
+*  |congif|Reserved|  Bus |Device|Function|Register|00|
+*  |Enable|	   |Number|Number| Number | Number |  |	   <=field Name
+*
+*********************************************************************/
+void pciWriteConfigReg (PCI_HOST host, unsigned int regOffset,
+			unsigned int pciDevNum, unsigned int data)
+{
+	volatile unsigned int DataForAddrReg;
+	unsigned int functionNum;
+	unsigned int busNum = 0;
+	unsigned int addr;
+
+	if (pciDevNum > 32)	/* illegal device Number */
+		return;
+	if (pciDevNum == SELF) {	/* configure our configuration space. */
+		pciDevNum =
+			(GTREGREAD (pci_p2p_configuration_reg[host]) >> 24) &
+			0x1f;
+		busNum = GTREGREAD (pci_p2p_configuration_reg[host]) &
+			0xff0000;
+	}
+	functionNum = regOffset & 0x00000700;
+	pciDevNum = pciDevNum << 11;
+	regOffset = regOffset & 0xfc;
+	DataForAddrReg =
+		(regOffset | pciDevNum | functionNum | busNum) | BIT31;
+	GT_REG_WRITE (pci_configuration_address[host], DataForAddrReg);
+	GT_REG_READ (pci_configuration_address[host], &addr);
+	if (addr != DataForAddrReg)
+		return;
+	GT_REG_WRITE (pci_configuration_data[host], data);
+}
+
+/********************************************************************
+* pciReadConfigReg  - Read from a PCI0 configuration register
+*		    - Make sure the GT is configured as a master before reading
+*		      from another device on the PCI.
+*		    - The function takes care of Big/Little endian conversion.
+* INPUTS:   regOffset: The register offset as it apears in the GT spec (or PCI
+*			spec)
+*	    pciDevNum: The device number needs to be addressed.
+* RETURNS: data , if the data == 0xffffffff check the master abort bit in the
+*		  cause register to make sure the data is valid
+*
+*  Configuration Address 0xCF8:
+*
+*	31 30	 24 23	16 15  11 10	 8 7	  2  0	   <=bit Number
+*  |congif|Reserved|  Bus |Device|Function|Register|00|
+*  |Enable|	   |Number|Number| Number | Number |  |	   <=field Name
+*
+*********************************************************************/
+unsigned int pciReadConfigReg (PCI_HOST host, unsigned int regOffset,
+			       unsigned int pciDevNum)
+{
+	volatile unsigned int DataForAddrReg;
+	unsigned int data;
+	unsigned int functionNum;
+	unsigned int busNum = 0;
+
+	if (pciDevNum > 32)	/* illegal device Number */
+		return 0xffffffff;
+	if (pciDevNum == SELF) {	/* configure our configuration space. */
+		pciDevNum =
+			(GTREGREAD (pci_p2p_configuration_reg[host]) >> 24) &
+			0x1f;
+		busNum = GTREGREAD (pci_p2p_configuration_reg[host]) &
+			0xff0000;
+	}
+	functionNum = regOffset & 0x00000700;
+	pciDevNum = pciDevNum << 11;
+	regOffset = regOffset & 0xfc;
+	DataForAddrReg =
+		(regOffset | pciDevNum | functionNum | busNum) | BIT31;
+	GT_REG_WRITE (pci_configuration_address[host], DataForAddrReg);
+	GT_REG_READ (pci_configuration_address[host], &data);
+	if (data != DataForAddrReg)
+		return 0xffffffff;
+	GT_REG_READ (pci_configuration_data[host], &data);
+	return data;
+}
+
+/********************************************************************
+* pciOverBridgeWriteConfigReg - Write to a PCI configuration register where
+*				the agent is placed on another Bus. For more
+*				information read P2P in the PCI spec.
+*
+* Inputs:   unsigned int regOffset - The register offset as it apears in the
+*	    GT spec (or any other PCI device spec).
+*	    unsigned int pciDevNum - The device number needs to be addressed.
+*	    unsigned int busNum - On which bus does the Target agent connect
+*				  to.
+*	    unsigned int data - data to be written.
+*
+*  Configuration Address 0xCF8:
+*
+*	31 30	 24 23	16 15  11 10	 8 7	  2  0	   <=bit Number
+*  |congif|Reserved|  Bus |Device|Function|Register|01|
+*  |Enable|	   |Number|Number| Number | Number |  |	   <=field Name
+*
+*  The configuration Address is configure as type-I (bits[1:0] = '01') due to
+*   PCI spec referring to P2P.
+*
+*********************************************************************/
+void pciOverBridgeWriteConfigReg (PCI_HOST host,
+				  unsigned int regOffset,
+				  unsigned int pciDevNum,
+				  unsigned int busNum, unsigned int data)
+{
+	unsigned int DataForReg;
+	unsigned int functionNum;
+
+	functionNum = regOffset & 0x00000700;
+	pciDevNum = pciDevNum << 11;
+	regOffset = regOffset & 0xff;
+	busNum = busNum << 16;
+	if (pciDevNum == SELF) {	/* This board */
+		DataForReg = (regOffset | pciDevNum | functionNum) | BIT0;
+	} else {
+		DataForReg = (regOffset | pciDevNum | functionNum | busNum) |
+			BIT31 | BIT0;
+	}
+	GT_REG_WRITE (pci_configuration_address[host], DataForReg);
+	GT_REG_WRITE (pci_configuration_data[host], data);
+}
+
+
+/********************************************************************
+* pciOverBridgeReadConfigReg  - Read from a PCIn configuration register where
+*				the agent target locate on another PCI bus.
+*			      - Make sure the GT is configured as a master
+*				before reading from another device on the PCI.
+*			      - The function takes care of Big/Little endian
+*				conversion.
+* INPUTS:   regOffset: The register offset as it apears in the GT spec (or PCI
+*			 spec). (configuration register offset.)
+*	    pciDevNum: The device number needs to be addressed.
+*	    busNum: the Bus number where the agent is place.
+* RETURNS: data , if the data == 0xffffffff check the master abort bit in the
+*		  cause register to make sure the data is valid
+*
+*  Configuration Address 0xCF8:
+*
+*	31 30	 24 23	16 15  11 10	 8 7	  2  0	   <=bit Number
+*  |congif|Reserved|  Bus |Device|Function|Register|01|
+*  |Enable|	   |Number|Number| Number | Number |  |	   <=field Name
+*
+*********************************************************************/
+unsigned int pciOverBridgeReadConfigReg (PCI_HOST host,
+					 unsigned int regOffset,
+					 unsigned int pciDevNum,
+					 unsigned int busNum)
+{
+	unsigned int DataForReg;
+	unsigned int data;
+	unsigned int functionNum;
+
+	functionNum = regOffset & 0x00000700;
+	pciDevNum = pciDevNum << 11;
+	regOffset = regOffset & 0xff;
+	busNum = busNum << 16;
+	if (pciDevNum == SELF) {	/* This board */
+		DataForReg = (regOffset | pciDevNum | functionNum) | BIT31;
+	} else {		/* agent on another bus */
+
+		DataForReg = (regOffset | pciDevNum | functionNum | busNum) |
+			BIT0 | BIT31;
+	}
+	GT_REG_WRITE (pci_configuration_address[host], DataForReg);
+	GT_REG_READ (pci_configuration_data[host], &data);
+	return data;
+}
+
+
+/********************************************************************
+* pciGetRegOffset - Gets the register offset for this region config.
+*
+* INPUT:   Bus, Region - The bus and region we ask for its base address.
+* OUTPUT:   N/A
+* RETURNS: PCI register base address
+*********************************************************************/
+static unsigned int pciGetRegOffset (PCI_HOST host, PCI_REGION region)
+{
+	switch (host) {
+	case PCI_HOST0:
+		switch (region) {
+		case PCI_IO:
+			return PCI_0I_O_LOW_DECODE_ADDRESS;
+		case PCI_REGION0:
+			return PCI_0MEMORY0_LOW_DECODE_ADDRESS;
+		case PCI_REGION1:
+			return PCI_0MEMORY1_LOW_DECODE_ADDRESS;
+		case PCI_REGION2:
+			return PCI_0MEMORY2_LOW_DECODE_ADDRESS;
+		case PCI_REGION3:
+			return PCI_0MEMORY3_LOW_DECODE_ADDRESS;
+		}
+	case PCI_HOST1:
+		switch (region) {
+		case PCI_IO:
+			return PCI_1I_O_LOW_DECODE_ADDRESS;
+		case PCI_REGION0:
+			return PCI_1MEMORY0_LOW_DECODE_ADDRESS;
+		case PCI_REGION1:
+			return PCI_1MEMORY1_LOW_DECODE_ADDRESS;
+		case PCI_REGION2:
+			return PCI_1MEMORY2_LOW_DECODE_ADDRESS;
+		case PCI_REGION3:
+			return PCI_1MEMORY3_LOW_DECODE_ADDRESS;
+		}
+	}
+	return PCI_0MEMORY0_LOW_DECODE_ADDRESS;
+}
+
+static unsigned int pciGetRemapOffset (PCI_HOST host, PCI_REGION region)
+{
+	switch (host) {
+	case PCI_HOST0:
+		switch (region) {
+		case PCI_IO:
+			return PCI_0I_O_ADDRESS_REMAP;
+		case PCI_REGION0:
+			return PCI_0MEMORY0_ADDRESS_REMAP;
+		case PCI_REGION1:
+			return PCI_0MEMORY1_ADDRESS_REMAP;
+		case PCI_REGION2:
+			return PCI_0MEMORY2_ADDRESS_REMAP;
+		case PCI_REGION3:
+			return PCI_0MEMORY3_ADDRESS_REMAP;
+		}
+	case PCI_HOST1:
+		switch (region) {
+		case PCI_IO:
+			return PCI_1I_O_ADDRESS_REMAP;
+		case PCI_REGION0:
+			return PCI_1MEMORY0_ADDRESS_REMAP;
+		case PCI_REGION1:
+			return PCI_1MEMORY1_ADDRESS_REMAP;
+		case PCI_REGION2:
+			return PCI_1MEMORY2_ADDRESS_REMAP;
+		case PCI_REGION3:
+			return PCI_1MEMORY3_ADDRESS_REMAP;
+		}
+	}
+	return PCI_0MEMORY0_ADDRESS_REMAP;
+}
+
+/********************************************************************
+* pciGetBaseAddress - Gets the base address of a PCI.
+*	    - If the PCI size is 0 then this base address has no meaning!!!
+*
+*
+* INPUT:   Bus, Region - The bus and region we ask for its base address.
+* OUTPUT:   N/A
+* RETURNS: PCI base address.
+*********************************************************************/
+unsigned int pciGetBaseAddress (PCI_HOST host, PCI_REGION region)
+{
+	unsigned int regBase;
+	unsigned int regEnd;
+	unsigned int regOffset = pciGetRegOffset (host, region);
+
+	GT_REG_READ (regOffset, &regBase);
+	GT_REG_READ (regOffset + 8, &regEnd);
+
+	if (regEnd <= regBase)
+		return 0xffffffff;	/* ERROR !!! */
+
+	regBase = regBase << 16;
+	return regBase;
+}
+
+bool pciMapSpace (PCI_HOST host, PCI_REGION region, unsigned int remapBase,
+		  unsigned int bankBase, unsigned int bankLength)
+{
+	unsigned int low = 0xfff;
+	unsigned int high = 0x0;
+	unsigned int regOffset = pciGetRegOffset (host, region);
+	unsigned int remapOffset = pciGetRemapOffset (host, region);
+
+	if (bankLength != 0) {
+		low = (bankBase >> 16) & 0xffff;
+		high = ((bankBase + bankLength) >> 16) - 1;
+	}
+
+	GT_REG_WRITE (regOffset, low | (1 << 24));	/* no swapping */
+	GT_REG_WRITE (regOffset + 8, high);
+
+	if (bankLength != 0) {	/* must do AFTER writing maps */
+		GT_REG_WRITE (remapOffset, remapBase >> 16);	/* sorry, 32 bits only.
+								   dont support upper 32
+								   in this driver */
+	}
+	return true;
+}
+
+unsigned int pciGetSpaceBase (PCI_HOST host, PCI_REGION region)
+{
+	unsigned int low;
+	unsigned int regOffset = pciGetRegOffset (host, region);
+
+	GT_REG_READ (regOffset, &low);
+	return (low & 0xffff) << 16;
+}
+
+unsigned int pciGetSpaceSize (PCI_HOST host, PCI_REGION region)
+{
+	unsigned int low, high;
+	unsigned int regOffset = pciGetRegOffset (host, region);
+
+	GT_REG_READ (regOffset, &low);
+	GT_REG_READ (regOffset + 8, &high);
+	return ((high & 0xffff) + 1) << 16;
+}
+
+
+/* ronen - 7/Dec/03*/
+/********************************************************************
+* gtPciDisable/EnableInternalBAR - This function enable/disable PCI BARS.
+* Inputs: one of the PCI BAR
+*********************************************************************/
+void gtPciEnableInternalBAR (PCI_HOST host, PCI_INTERNAL_BAR pciBAR)
+{
+	RESET_REG_BITS (pci_address_space_en[host], BIT0 << pciBAR);
+}
+
+void gtPciDisableInternalBAR (PCI_HOST host, PCI_INTERNAL_BAR pciBAR)
+{
+	SET_REG_BITS (pci_address_space_en[host], BIT0 << pciBAR);
+}
+
+/********************************************************************
+* pciMapMemoryBank - Maps PCI_host memory bank "bank" for the slave.
+*
+* Inputs: base and size of PCI SCS
+*********************************************************************/
+void pciMapMemoryBank (PCI_HOST host, MEMORY_BANK bank,
+		       unsigned int pciDramBase, unsigned int pciDramSize)
+{
+	/*ronen different function for 3rd bank. */
+	unsigned int offset = (bank < 2) ? bank * 8 : 0x100 + (bank - 2) * 8;
+
+	pciDramBase = pciDramBase & 0xfffff000;
+	pciDramBase = pciDramBase | (pciReadConfigReg (host,
+						       PCI_SCS_0_BASE_ADDRESS
+						       + offset,
+						       SELF) & 0x00000fff);
+	pciWriteConfigReg (host, PCI_SCS_0_BASE_ADDRESS + offset, SELF,
+			   pciDramBase);
+	if (pciDramSize == 0)
+		pciDramSize++;
+	GT_REG_WRITE (pci_scs_bank_size[host][bank], pciDramSize - 1);
+	gtPciEnableInternalBAR (host, bank);
+}
+
+/********************************************************************
+* pciSetRegionFeatures - This function modifys one of the 8 regions with
+*			  feature bits given as an input.
+*			- Be advised to check the spec before modifying them.
+* Inputs: PCI_PROTECT_REGION region - one of the eight regions.
+*	  unsigned int features - See file: pci.h there are defintion for those
+*				  region features.
+*	  unsigned int baseAddress - The region base Address.
+*	  unsigned int topAddress - The region top Address.
+* Returns: false if one of the parameters is erroneous true otherwise.
+*********************************************************************/
+bool pciSetRegionFeatures (PCI_HOST host, PCI_ACCESS_REGIONS region,
+			   unsigned int features, unsigned int baseAddress,
+			   unsigned int regionLength)
+{
+	unsigned int accessLow;
+	unsigned int accessHigh;
+	unsigned int accessTop = baseAddress + regionLength;
+
+	if (regionLength == 0) {	/* close the region. */
+		pciDisableAccessRegion (host, region);
+		return true;
+	}
+	/* base Address is store is bits [11:0] */
+	accessLow = (baseAddress & 0xfff00000) >> 20;
+	/* All the features are update according to the defines in pci.h (to be on
+	   the safe side we disable bits: [11:0] */
+	accessLow = accessLow | (features & 0xfffff000);
+	/* write to the Low Access Region register */
+	GT_REG_WRITE (pci_access_control_base_0_low[host] + 0x10 * region,
+		      accessLow);
+
+	accessHigh = (accessTop & 0xfff00000) >> 20;
+
+	/* write to the High Access Region register */
+	GT_REG_WRITE (pci_access_control_top_0[host] + 0x10 * region,
+		      accessHigh - 1);
+	return true;
+}
+
+/********************************************************************
+* pciDisableAccessRegion - Disable The given Region by writing MAX size
+*			    to its low Address and MIN size to its high Address.
+*
+* Inputs:   PCI_ACCESS_REGIONS region - The region we to be Disabled.
+* Returns:  N/A.
+*********************************************************************/
+void pciDisableAccessRegion (PCI_HOST host, PCI_ACCESS_REGIONS region)
+{
+	/* writing back the registers default values. */
+	GT_REG_WRITE (pci_access_control_base_0_low[host] + 0x10 * region,
+		      0x01001fff);
+	GT_REG_WRITE (pci_access_control_top_0[host] + 0x10 * region, 0);
+}
+
+/********************************************************************
+* pciArbiterEnable - Enables PCI-0`s Arbitration mechanism.
+*
+* Inputs:   N/A
+* Returns:  true.
+*********************************************************************/
+bool pciArbiterEnable (PCI_HOST host)
+{
+	unsigned int regData;
+
+	GT_REG_READ (pci_arbiter_control[host], &regData);
+	GT_REG_WRITE (pci_arbiter_control[host], regData | BIT31);
+	return true;
+}
+
+/********************************************************************
+* pciArbiterDisable - Disable PCI-0`s Arbitration mechanism.
+*
+* Inputs:   N/A
+* Returns:  true
+*********************************************************************/
+bool pciArbiterDisable (PCI_HOST host)
+{
+	unsigned int regData;
+
+	GT_REG_READ (pci_arbiter_control[host], &regData);
+	GT_REG_WRITE (pci_arbiter_control[host], regData & 0x7fffffff);
+	return true;
+}
+
+/********************************************************************
+* pciSetArbiterAgentsPriority - Priority setup for the PCI agents (Hi or Low)
+*
+* Inputs:   PCI_AGENT_PRIO internalAgent - priotity for internal agent.
+*	    PCI_AGENT_PRIO externalAgent0 - priotity for external#0 agent.
+*	    PCI_AGENT_PRIO externalAgent1 - priotity for external#1 agent.
+*	    PCI_AGENT_PRIO externalAgent2 - priotity for external#2 agent.
+*	    PCI_AGENT_PRIO externalAgent3 - priotity for external#3 agent.
+*	    PCI_AGENT_PRIO externalAgent4 - priotity for external#4 agent.
+*	    PCI_AGENT_PRIO externalAgent5 - priotity for external#5 agent.
+* Returns:  true
+*********************************************************************/
+bool pciSetArbiterAgentsPriority (PCI_HOST host, PCI_AGENT_PRIO internalAgent,
+				  PCI_AGENT_PRIO externalAgent0,
+				  PCI_AGENT_PRIO externalAgent1,
+				  PCI_AGENT_PRIO externalAgent2,
+				  PCI_AGENT_PRIO externalAgent3,
+				  PCI_AGENT_PRIO externalAgent4,
+				  PCI_AGENT_PRIO externalAgent5)
+{
+	unsigned int regData;
+	unsigned int writeData;
+
+	GT_REG_READ (pci_arbiter_control[host], &regData);
+	writeData = (internalAgent << 7) + (externalAgent0 << 8) +
+		(externalAgent1 << 9) + (externalAgent2 << 10) +
+		(externalAgent3 << 11) + (externalAgent4 << 12) +
+		(externalAgent5 << 13);
+	regData = (regData & 0xffffc07f) | writeData;
+	GT_REG_WRITE (pci_arbiter_control[host], regData & regData);
+	return true;
+}
+
+/********************************************************************
+* pciParkingDisable - Park on last option disable, with this function you can
+*		       disable the park on last mechanism for each agent.
+*		       disabling this option for all agents results parking
+*		       on the internal master.
+*
+* Inputs: PCI_AGENT_PARK internalAgent -  parking Disable for internal agent.
+*	  PCI_AGENT_PARK externalAgent0 - parking Disable for external#0 agent.
+*	  PCI_AGENT_PARK externalAgent1 - parking Disable for external#1 agent.
+*	  PCI_AGENT_PARK externalAgent2 - parking Disable for external#2 agent.
+*	  PCI_AGENT_PARK externalAgent3 - parking Disable for external#3 agent.
+*	  PCI_AGENT_PARK externalAgent4 - parking Disable for external#4 agent.
+*	  PCI_AGENT_PARK externalAgent5 - parking Disable for external#5 agent.
+* Returns:  true
+*********************************************************************/
+bool pciParkingDisable (PCI_HOST host, PCI_AGENT_PARK internalAgent,
+			PCI_AGENT_PARK externalAgent0,
+			PCI_AGENT_PARK externalAgent1,
+			PCI_AGENT_PARK externalAgent2,
+			PCI_AGENT_PARK externalAgent3,
+			PCI_AGENT_PARK externalAgent4,
+			PCI_AGENT_PARK externalAgent5)
+{
+	unsigned int regData;
+	unsigned int writeData;
+
+	GT_REG_READ (pci_arbiter_control[host], &regData);
+	writeData = (internalAgent << 14) + (externalAgent0 << 15) +
+		(externalAgent1 << 16) + (externalAgent2 << 17) +
+		(externalAgent3 << 18) + (externalAgent4 << 19) +
+		(externalAgent5 << 20);
+	regData = (regData & ~(0x7f << 14)) | writeData;
+	GT_REG_WRITE (pci_arbiter_control[host], regData);
+	return true;
+}
+
+/********************************************************************
+* pciEnableBrokenAgentDetection - A master is said to be broken if it fails to
+*			respond to grant assertion within a window specified in
+*			the input value: 'brokenValue'.
+*
+* Inputs: unsigned char brokenValue -  A value which limits the Master to hold the
+*			grant without asserting frame.
+* Returns:  Error for illegal broken value otherwise true.
+*********************************************************************/
+bool pciEnableBrokenAgentDetection (PCI_HOST host, unsigned char brokenValue)
+{
+	unsigned int data;
+	unsigned int regData;
+
+	if (brokenValue > 0xf)
+		return false;	/* brokenValue must be 4 bit */
+	data = brokenValue << 3;
+	GT_REG_READ (pci_arbiter_control[host], &regData);
+	regData = (regData & 0xffffff87) | data;
+	GT_REG_WRITE (pci_arbiter_control[host], regData | BIT1);
+	return true;
+}
+
+/********************************************************************
+* pciDisableBrokenAgentDetection - This function disable the Broken agent
+*			    Detection mechanism.
+*			    NOTE: This operation may cause a dead lock on the
+*			    pci0 arbitration.
+*
+* Inputs:   N/A
+* Returns:  true.
+*********************************************************************/
+bool pciDisableBrokenAgentDetection (PCI_HOST host)
+{
+	unsigned int regData;
+
+	GT_REG_READ (pci_arbiter_control[host], &regData);
+	regData = regData & 0xfffffffd;
+	GT_REG_WRITE (pci_arbiter_control[host], regData);
+	return true;
+}
+
+/********************************************************************
+* pciP2PConfig - This function set the PCI_n P2P configurate.
+*		  For more information on the P2P read PCI spec.
+*
+* Inputs:  unsigned int SecondBusLow - Secondery PCI interface Bus Range Lower
+*				       Boundry.
+*	   unsigned int SecondBusHigh - Secondry PCI interface Bus Range upper
+*				       Boundry.
+*	   unsigned int busNum - The CPI bus number to which the PCI interface
+*				       is connected.
+*	   unsigned int devNum - The PCI interface's device number.
+*
+* Returns:  true.
+*********************************************************************/
+bool pciP2PConfig (PCI_HOST host, unsigned int SecondBusLow,
+		   unsigned int SecondBusHigh,
+		   unsigned int busNum, unsigned int devNum)
+{
+	unsigned int regData;
+
+	regData = (SecondBusLow & 0xff) | ((SecondBusHigh & 0xff) << 8) |
+		((busNum & 0xff) << 16) | ((devNum & 0x1f) << 24);
+	GT_REG_WRITE (pci_p2p_configuration[host], regData);
+	return true;
+}
+
+/********************************************************************
+* pciSetRegionSnoopMode - This function modifys one of the 4 regions which
+*			   supports Cache Coherency in the PCI_n interface.
+* Inputs: region - One of the four regions.
+*	  snoopType - There is four optional Types:
+*			 1. No Snoop.
+*			 2. Snoop to WT region.
+*			 3. Snoop to WB region.
+*			 4. Snoop & Invalidate to WB region.
+*	  baseAddress - Base Address of this region.
+*	  regionLength - Region length.
+* Returns: false if one of the parameters is wrong otherwise return true.
+*********************************************************************/
+bool pciSetRegionSnoopMode (PCI_HOST host, PCI_SNOOP_REGION region,
+			    PCI_SNOOP_TYPE snoopType,
+			    unsigned int baseAddress,
+			    unsigned int regionLength)
+{
+	unsigned int snoopXbaseAddress;
+	unsigned int snoopXtopAddress;
+	unsigned int data;
+	unsigned int snoopHigh = baseAddress + regionLength;
+
+	if ((region > PCI_SNOOP_REGION3) || (snoopType > PCI_SNOOP_WB))
+		return false;
+	snoopXbaseAddress =
+		pci_snoop_control_base_0_low[host] + 0x10 * region;
+	snoopXtopAddress = pci_snoop_control_top_0[host] + 0x10 * region;
+	if (regionLength == 0) {	/* closing the region */
+		GT_REG_WRITE (snoopXbaseAddress, 0x0000ffff);
+		GT_REG_WRITE (snoopXtopAddress, 0);
+		return true;
+	}
+	baseAddress = baseAddress & 0xfff00000; /* Granularity of 1MByte */
+	data = (baseAddress >> 20) | snoopType << 12;
+	GT_REG_WRITE (snoopXbaseAddress, data);
+	snoopHigh = (snoopHigh & 0xfff00000) >> 20;
+	GT_REG_WRITE (snoopXtopAddress, snoopHigh - 1);
+	return true;
+}
+
+static int gt_read_config_dword (struct pci_controller *hose,
+				 pci_dev_t dev, int offset, u32 * value)
+{
+	int bus = PCI_BUS (dev);
+
+	if ((bus == local_buses[0]) || (bus == local_buses[1])) {
+		*value = pciReadConfigReg ((PCI_HOST) hose->cfg_addr, offset,
+					   PCI_DEV (dev));
+	} else {
+		*value = pciOverBridgeReadConfigReg ((PCI_HOST) hose->
+						     cfg_addr, offset,
+						     PCI_DEV (dev), bus);
+	}
+
+	return 0;
+}
+
+static int gt_write_config_dword (struct pci_controller *hose,
+				  pci_dev_t dev, int offset, u32 value)
+{
+	int bus = PCI_BUS (dev);
+
+	if ((bus == local_buses[0]) || (bus == local_buses[1])) {
+		pciWriteConfigReg ((PCI_HOST) hose->cfg_addr, offset,
+				   PCI_DEV (dev), value);
+	} else {
+		pciOverBridgeWriteConfigReg ((PCI_HOST) hose->cfg_addr,
+					     offset, PCI_DEV (dev), bus,
+					     value);
+	}
+	return 0;
+}
+
+
+static void gt_setup_ide (struct pci_controller *hose,
+			  pci_dev_t dev, struct pci_config_table *entry)
+{
+	static const int ide_bar[] = { 8, 4, 8, 4, 0, 0 };
+	u32 bar_response, bar_value;
+	int bar;
+
+	for (bar = 0; bar < 6; bar++) {
+		/*ronen different function for 3rd bank. */
+		unsigned int offset =
+			(bar < 2) ? bar * 8 : 0x100 + (bar - 2) * 8;
+
+		pci_hose_write_config_dword (hose, dev, PCI_BASE_ADDRESS_0 + offset,
+					     0x0);
+		pci_hose_read_config_dword (hose, dev, PCI_BASE_ADDRESS_0 + offset,
+					    &bar_response);
+
+		pciauto_region_allocate (bar_response &
+					 PCI_BASE_ADDRESS_SPACE_IO ? hose->
+					 pci_io : hose->pci_mem, ide_bar[bar],
+					 &bar_value);
+
+		pci_hose_write_config_dword (hose, dev, PCI_BASE_ADDRESS_0 + bar * 4,
+					     bar_value);
+	}
+}
+
+#ifdef CONFIG_USE_CPCIDVI
+static void gt_setup_cpcidvi (struct pci_controller *hose,
+			      pci_dev_t dev, struct pci_config_table *entry)
+{
+	u32		  bar_value, pci_response;
+
+	pci_hose_read_config_dword (hose, dev, PCI_COMMAND, &pci_response);
+	pci_hose_write_config_dword (hose, dev, PCI_BASE_ADDRESS_0, 0xffffffff);
+	pci_hose_read_config_dword (hose, dev, PCI_BASE_ADDRESS_0, &pci_response);
+	pciauto_region_allocate (hose->pci_mem, 0x01000000, &bar_value);
+	pci_hose_write_config_dword (hose, dev, PCI_BASE_ADDRESS_0, (bar_value & 0xffffff00));
+	pci_hose_write_config_dword (hose, dev, PCI_ROM_ADDRESS, 0x0);
+	pciauto_region_allocate (hose->pci_mem, 0x40000, &bar_value);
+	pci_hose_write_config_dword (hose, dev, PCI_ROM_ADDRESS, (bar_value & 0xffffff00) | 0x01);
+	gt_cpcidvi_rom.base = bar_value & 0xffffff00;
+	gt_cpcidvi_rom.init = 1;
+}
+
+unsigned char gt_cpcidvi_in8(unsigned int offset)
+{
+	unsigned char	  data;
+
+	if (gt_cpcidvi_rom.init == 0) {
+		return(0);
+		}
+	data = in8((offset & 0x04) + 0x3f000 + gt_cpcidvi_rom.base);
+	return(data);
+}
+
+void gt_cpcidvi_out8(unsigned int offset, unsigned char data)
+{
+	unsigned int	  off;
+
+	if (gt_cpcidvi_rom.init == 0) {
+		return;
+	}
+	off = data;
+	off = ((off << 3) & 0x7f8) + (offset & 0x4) + 0x3e000 + gt_cpcidvi_rom.base;
+	in8(off);
+	return;
+}
+#endif
+
+/* TODO BJW: Change this for DB64360. This was pulled from the EV64260	*/
+/* and is curently not called *. */
+#if 0
+static void gt_fixup_irq (struct pci_controller *hose, pci_dev_t dev)
+{
+	unsigned char pin, irq;
+
+	pci_read_config_byte (dev, PCI_INTERRUPT_PIN, &pin);
+
+	if (pin == 1) {		/* only allow INT A */
+		irq = pci_irq_swizzle[(PCI_HOST) hose->
+				      cfg_addr][PCI_DEV (dev)];
+		if (irq)
+			pci_write_config_byte (dev, PCI_INTERRUPT_LINE, irq);
+	}
+}
+#endif
+
+struct pci_config_table gt_config_table[] = {
+#ifdef CONFIG_USE_CPCIDVI
+	{PCI_VENDOR_ID_CT, PCI_DEVICE_ID_CT_69030, PCI_CLASS_DISPLAY_VGA,
+	 PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, gt_setup_cpcidvi},
+#endif
+	{PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE,
+	 PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, gt_setup_ide},
+	{}
+};
+
+struct pci_controller pci0_hose = {
+/*    fixup_irq: gt_fixup_irq, */
+	config_table:gt_config_table,
+};
+
+struct pci_controller pci1_hose = {
+/*    fixup_irq: gt_fixup_irq, */
+	config_table:gt_config_table,
+};
+
+void pci_init_board (void)
+{
+	unsigned int command;
+#ifdef CONFIG_PCI_PNP
+	unsigned int bar;
+#endif
+#ifdef DEBUG
+	gt_pci_bus_mode_display (PCI_HOST0);
+#endif
+#ifdef CONFIG_USE_CPCIDVI
+	gt_cpcidvi_rom.init = 0;
+	gt_cpcidvi_rom.base = 0;
+#endif
+
+	pci0_hose.config_table = gt_config_table;
+	pci1_hose.config_table = gt_config_table;
+
+#ifdef CONFIG_USE_CPCIDVI
+	gt_config_table[0].config_device =  gt_setup_cpcidvi;
+#endif
+	gt_config_table[1].config_device =  gt_setup_ide;
+
+	pci0_hose.first_busno = 0;
+	pci0_hose.last_busno = 0xff;
+	local_buses[0] = pci0_hose.first_busno;
+
+	/* PCI memory space */
+	pci_set_region (pci0_hose.regions + 0,
+			CFG_PCI0_0_MEM_SPACE,
+			CFG_PCI0_0_MEM_SPACE,
+			CFG_PCI0_MEM_SIZE, PCI_REGION_MEM);
+
+	/* PCI I/O space */
+	pci_set_region (pci0_hose.regions + 1,
+			CFG_PCI0_IO_SPACE_PCI,
+			CFG_PCI0_IO_SPACE, CFG_PCI0_IO_SIZE, PCI_REGION_IO);
+
+	pci_set_ops (&pci0_hose,
+		     pci_hose_read_config_byte_via_dword,
+		     pci_hose_read_config_word_via_dword,
+		     gt_read_config_dword,
+		     pci_hose_write_config_byte_via_dword,
+		     pci_hose_write_config_word_via_dword,
+		     gt_write_config_dword);
+	pci0_hose.region_count = 2;
+
+	pci0_hose.cfg_addr = (unsigned int *) PCI_HOST0;
+
+	pci_register_hose (&pci0_hose);
+	pciArbiterDisable(PCI_HOST0); /* on PMC modules no arbiter is used */
+	pciParkingDisable (PCI_HOST0, 1, 1, 1, 1, 1, 1, 1);
+	command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
+	command |= PCI_COMMAND_MASTER;
+	pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
+	command = pciReadConfigReg (PCI_HOST0, PCI_COMMAND, SELF);
+	command |= PCI_COMMAND_MEMORY;
+	pciWriteConfigReg (PCI_HOST0, PCI_COMMAND, SELF, command);
+
+#ifdef CONFIG_PCI_PNP
+	pciauto_config_init(&pci0_hose);
+	pciauto_region_allocate(pci0_hose.pci_io, 0x400, &bar);
+#endif
+#ifdef CONFIG_PCI_SCAN_SHOW
+	printf("PCI:   Bus Dev VenId DevId Class Int\n");
+#endif
+	pci0_hose.last_busno = pci_hose_scan_bus (&pci0_hose, pci0_hose.first_busno);
+
+#ifdef DEBUG
+	gt_pci_bus_mode_display (PCI_HOST1);
+#endif
+	pci1_hose.first_busno = pci0_hose.last_busno + 1;
+	pci1_hose.last_busno = 0xff;
+	pci1_hose.current_busno = pci1_hose.first_busno;
+	local_buses[1] = pci1_hose.first_busno;
+
+	/* PCI memory space */
+	pci_set_region (pci1_hose.regions + 0,
+			CFG_PCI1_0_MEM_SPACE,
+			CFG_PCI1_0_MEM_SPACE,
+			CFG_PCI1_MEM_SIZE, PCI_REGION_MEM);
+
+	/* PCI I/O space */
+	pci_set_region (pci1_hose.regions + 1,
+			CFG_PCI1_IO_SPACE_PCI,
+			CFG_PCI1_IO_SPACE, CFG_PCI1_IO_SIZE, PCI_REGION_IO);
+
+	pci_set_ops (&pci1_hose,
+		     pci_hose_read_config_byte_via_dword,
+		     pci_hose_read_config_word_via_dword,
+		     gt_read_config_dword,
+		     pci_hose_write_config_byte_via_dword,
+		     pci_hose_write_config_word_via_dword,
+		     gt_write_config_dword);
+
+	pci1_hose.region_count = 2;
+
+	pci1_hose.cfg_addr = (unsigned int *) PCI_HOST1;
+
+	pci_register_hose (&pci1_hose);
+
+	pciArbiterEnable (PCI_HOST1);
+	pciParkingDisable (PCI_HOST1, 1, 1, 1, 1, 1, 1, 1);
+
+	command = pciReadConfigReg (PCI_HOST1, PCI_COMMAND, SELF);
+	command |= PCI_COMMAND_MASTER;
+	pciWriteConfigReg (PCI_HOST1, PCI_COMMAND, SELF, command);
+
+#ifdef CONFIG_PCI_PNP
+	pciauto_config_init(&pci1_hose);
+	pciauto_region_allocate(pci1_hose.pci_io, 0x400, &bar);
+#endif
+	pci1_hose.last_busno = pci_hose_scan_bus (&pci1_hose, pci1_hose.first_busno);
+
+	command = pciReadConfigReg (PCI_HOST1, PCI_COMMAND, SELF);
+	command |= PCI_COMMAND_MEMORY;
+	pciWriteConfigReg (PCI_HOST1, PCI_COMMAND, SELF, command);
+
+}
+#endif /* of CONFIG_PCI */